Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c5cc2ff6b7aa3c7…

MALICIOUS

PDF

32.0 KB Created: 2020-10-24 00:29:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d5137b976d9c45b8375a8492eab3b83d SHA-1: ffbb8987c1b55940b167933928f169570028be9d SHA-256: 0c5cc2ff6b7aa3c7722daa041e81b88660c0e370ff654d17ef3122f5c3e93258
182 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous links, including one pointing to a known malicious redirector. The document body text and embedded links suggest a lure related to academic papers, likely to trick users into visiting the malicious URL. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/123?keyword=ieee+papers+on+agriculture+automation+pdf In PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/zapagobotab.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/7c1ef5333.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/6d55d987.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/kixotukibibev.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/2c5e263e815.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/5203221.pdfIn PDF document text
    • https://sakukavazu.weebly.com/uploads/1/3/1/3/131379729/3553507.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378379/normal_5f9344f761e08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391602/normal_5f91a9a5ebf82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405413/normal_5f934adee5647.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/39ba6c37-2043-44dd-af4e-2f7dbf203414/siguwojoxusugeja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8546bc7e-36c1-4ddc-bb0e-0c5ec94f0bb8/41685362645.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65aacb91-84d6-4781-9e41-cc2b897db62e/nebexileliletosisugaxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/deffa89f-808d-489c-aff8-94f1b4427543/94606766242.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/788bf4d6-7196-4523-9896-dc9fc077c139/danmachi_light_novel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b988b12-4bb1-4f12-9f08-057264afd5be/bissell_deep_clean_deluxe_pet_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/135972c9-b43b-43bb-986a-8954d33d28bb/bemesilud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36fc2d77-f72b-4cbd-8933-bdc2e2ea92ff/cnc_programming_classes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f457dfc-3a73-4507-8694-c159e497768f/37797923399.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37d83cb-c80b-4508-bcb8-2564f596bf1e/91286218675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72200e55-c7de-468a-b830-d400546223a0/sowuwilufaxax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d330d846-d22d-43ad-b645-052935aa33ae/xekixebesixiwodumuvaduw.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F77 5412 bytes
SHA-256: 9fc20bbc4bfe79782fd5c9b4559f21c0c3cffc712a7605e2b2059b5641f248f4
font_01_sfnt_off000061c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C7 9312 bytes
SHA-256: 5f5995d054ebf1def3481956bd3f2acf44701a75b019309e23db54057bf49459

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